Antidepressants and Psychotherapy May Ease IBS Symptoms 

By Kaitlyn D’Onofrio - Last Updated: April 10, 2023

Centrally acting drugs like antidepressants and psychotherapy could help patients with irritable bowel syndrome (IBS). 

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An updated systematic review and meta-analysis included 53 randomized controlled trials (RCTs) (51 separate articles) up to July 2017 through MEDLINE, EMBASE, PsychINFO, and the Cochrane Controlled Trials Register. Eligible RCTs had to include adults with IBS that compared antidepressants versus placebo, or psychological therapies versus control therapy or “usual management.” 

The relative risk (RR) associated with IBS symptoms not improving with antidepressants compared to placebo was 0.66 (95% CI 0.57–0.76). Tricyclic antidepressants provided greater relief of global IBS symptoms, while selective serotonin reuptake inhibitors (SSRIs) outperformed the placebo with pain and bloating symptoms, as well as quality of life. When using psychological therapies, the RR of IBS symptoms not improving was (95% CI 0.62–0.76). Cognitive behavioral therapy, relaxation therapy, multi-component psychological therapy, hypnotherapy, and dynamic psychotherapy were all correlated with positive benefits in at least two RCTs. 

Dr. Michael Camilleri, a researcher at the Mayo Clinic College of Medicine and Science in Rochester, Minn., told Reuters by email, “One component of IBS is increased sensitivity to the functions of the bowels; simply summarized, this means either the nerves taking messages from the bowel to the brain are more sensitive or that the brain is more attentive or reacts in a more emotional manner to the normal messages arising in the bowel, or both.” 

“Since there are really no medications to reduce the nerve sensitivity, some doctors give medications that modulate the function of the brain in the hope that this approach will reduce the ability to sense or emotionally react to the signals or messages arriving from the bowels,” Camilleri, who was not involved in the present study, also said. 

The researchers concluded that antidepressants and psychotherapy both appear to positively affect IBS symptoms, “although there are limitations in the quality of the evidence, and treatment effects may be overestimated as a result.” 

Read about the role of cannabis in IBS treatment here. 

The role of avoidance behavior in the treatment of adolescents with irritable bowel syndrome: A mediation analysis 

Estrogen signaling deregulation related with local immune response modulation in irritable bowel syndrome 

Sources: The American Journal of GastroenterologyReuters

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